Add detachmenu

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3636 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/frame.h

@@ -68,6 +68,7 @@ public:
 
     bool Show(bool show);
 
+    void DetachMenuBar();
     // Set menu bar
     void SetMenuBar(wxMenuBar *menu_bar);
     virtual wxMenuBar *GetMenuBar() const;

src/msw/frame.cpp

@@ -418,12 +418,20 @@ void wxFrame::PositionStatusBar()
 }
 #endif // wxUSE_STATUSBAR
 
+void wxFrame::DetachMenuBar()
+{
+    if (m_frameMenuBar)
+    {
+        m_frameMenuBar->Detach();
+        m_frameMenuBar = NULL;
+    }
+}
+
 void wxFrame::SetMenuBar(wxMenuBar *menu_bar)
 {
     if (!menu_bar)
     {
-        delete m_frameMenuBar;
+        DetachMenuBar();
-        m_frameMenuBar = NULL;
         return;
     }